When did Rob Portman really change his mind on gay marriage?

In any case, my question for and about Portman, a decent and thoughtful man I’ve known for many years, isn’t why it took a gay son to move him to his current stance, but whether it really took a gay son to do that, and whether he was here or almost here a while back, but just didn’t say so.

What’s too infrequently noted or written is how many Republicans who aren’t on the party’s far right have privately, silently accepted and supported gays and lesbians but have stayed publicly mum, and articulated contrary positions, in the interests of political survival. A big part of what’s changing now isn’t their hearts. It’s their belief that they can be true to their hearts without committing political suicide, because America has made extraordinary progress, and because there’s no turning back.